/*
 * Copyright (C) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

export class MyIter<T> implements Iterable<T> {
  private data: T[];

  constructor(items: T[]) {
    this.data = items;
  }

  [Symbol.iterator](): Iterator<T> {
    let index = 0;
    const data = this.data;

    return {
      next(): IteratorResult<T> {
        if (index < data.length) {
          return { value: data[index++], done: false };
        }
        return { value: undefined, done: true };
      }
    };
  }
}